Suction cleaning apparatus



D. 4, 1945. J. P. JASON 2,390,101

SUCTION CLEANING APPARATUS Filed Nov. 10, 1943 2 Sheets-Sheet l 5ywaa-7F Dc. 4, 1945. J. P. JAsoN SUCTION CLEANING APPARATUS Filed Nov. lO, 1943 2 SheebS-SheekI 2 Patented 4, 1945 SUCTION CLEANING APPARATUS John P. Jason, Chicago, Ill., asslgnor to Breuer Electric Mfg. Co., Chicago, Ill., a corporation of llllnoll Application November 10, 1943, Serial No. 509,726 3 Claims.' (Cl. 23o-13 2) This invention relates to improvements in suction cleaners of the class wherein a wheeled supported heavy dust precipitation tank is employed in combination with a separable hand portablev y suction cleaner mountedv onthe cover of thetank.

Devices of the foregoing lclass have previously been employed which generally comprised the horizontal positioning of the portable suction cleaner above the tank cover on upwardly extending mounting means and the employment of a separate elbow pipe, one end of which was connected to the suction cleaner inlet and the other extended into the tank through an opening in the cover. Such arrangements are diillcult to assemble and demount since they are generally handled by unskilled persons, the operation of the apparatus is subject to considerable vibration, and the employment of a relatively narrow connecting elbow with its abrupt turn entails added friction and power loss and attendant inefficiency.

It is therefore an object of the present invention to provide a new and improved cover for a tank or heavy dust precipitation receptacle of the class described adapted to seat a, separable hand portable suction cleaner and to provide such cover with an integrally formed enlarged path or conduit rising therefrom and terminating with an orifice opening to a vertical plane, wherebythe suction cleaner may be quickly and conveniently mounted horizontally thereon and its suction inlet simultaneously connected with the tank through the cover without the necessity for the employment and engagement of a separate connecting elbow. Due to the construction and arrangement of parts the connecting path may be enlarged and the change in direction less abrupt with attendant decrease in friction and power loss, and the compactness in which the parts are associated and the reduction in number of parts together with the lowering of the center of gravity of the mounted suction unit permits substan tial elimination of vibration in operation.

Other objects and advantages relating to the details of construction and economies thereof will be apparent from a consideration of the following specification and drawings, wherein:

Fig. 1 is a side elevational View of suction cleaning apparatus constructed in accordance' with the present invention.

Fig. 2 is a vertical section of the cover of the assembly shown in Fig. 1, with hand portable suction unit shown in dotted lines engaged thereon.

Fig. 3 is a fragmentary plan view of myimproved cover.

Fig. 4 is an elevation of my improved cover viewed in a direction facing the orifice of thek connection conduit.

Fig. 5 is a fragmentary detail view of a tei'- minalforengaging the end of a retaining band which passes 4about the motor housing of the separable suction cleaner unit.

Referring to the drawings, the reference numeral I0 indicates a heavy dust particle precipitation vessel or tank supported on a wheeled mount generally indicated as Il. The tank is provided with a separable cover, generally indicated as I2, the cover being provided on its under side with an annular recessed rim I3 which seats on the lip of the tank. The cover is engaged to the tank by means of the bolts, I4 pivoted to the tank Wall at l5, the bolts being extendable hito the slotted lugs I6 on the cover and the cover clamped in place by means of wing units Il. The tank is provided intermediate its height with a suction inlet I8 having an attacnment fixture I9 to which a suitable suction hose, not shown, may be connected. A

In the operation of the apparatus dust laden air is drawn into the tank I0 through the inlet I8 and the heavy dust particles are precipitated out and move downwardly and are retained in the tank, whereas the air and Ime dust particles are drawn upwardly and outwardly through the enlarged cover conduit 2U and tile ian casing 2l oi' the hand portable suction uint, generally indicated as 22, to exhaust through the tangential iaii casing outlet 2li, A suitable dust bag or muilier, not snown, may be connected to the outlet 23.

The suction unit 22 is a conventiona1 hand portable blower and suction cleaner unit and may be and is of a type intended to be separately employed for such uses when not employed in trie inustrated arrangement of the present invention. It comprises in general a motorencased in the housing 24 and a fan connected to the motor shaft enclosed in the fan housing 2|. The fan housing is' provided with a tangential outlet 23 and an axial inlet 2,5. l

In the association of separately hand portable suction units with tanks of the class herein contemplated, it is preferable that the suction unit b e mounted horizontally so'as to prevent leakage or drainage of lubrication from the ,motor bearings and for the reason that such units are otherwise primarily constructed to operate and wear best in such general position. However, as previously indicated herein, mounting of the unit on the tank cover involves problems of proper association and support and connecting engagement ential contour and transversely slightly longer than thethickness of the fan casing of the unit `22, and may further provide a contiguous longitudinally inclined or converging concavity` at 21 for seating a portion of the motor casing.

For the purpose of providing better lateral support for the seated unit 22 I provide externally lleted and internally concave risers 28 for seating and laterally supporting the motor casing 24, and I may further provide the cover with externally convex elevated portions 29 extending from the lateral end portions of the major depression 26 to merging relationship with the llets of the risers 28. For the purpose of aiding in damping vibration the motor casing seat may be provided with a groove 30 seating a gasket 3i and the fan casing depression may be provided with a similar groove 32 seating a gasket 33. It will be understood that the lateral supporting risers or units 28 and 29 may be otherwise externally contoured. Also the grooves 30 and 32 and theirgaskets 3i and 33 respectively may be of other form, for example sectionaLwithout necessity for further illustration.

Rising from adjacent to, and between the periphery of the cover i 2 and the groove 32, is the integral elbow or conduit 20, the conduit terminating above the cover in an inward annular flange 34, the flange extending vertically in a plane normal to the longitudinal axis of the composite seat provided for the unit 22. The flange 34v is also provided with a suitable annular groove seating a gasket 35 against which the outer end wall of the fan casing 2i may bear when seated on the coverv I2.

In engaging the unit 22 to the cover i 2, the unit is lowered into the composite seat formed by the depression 26 and. the adjacent portions 28, 29, etc., in a manner whereby the fan conduit 25 clears the ange 34, and thereafter the unit moved longitudinally, by provision of the enlarged width of the groove 26, as viewed in the section of Fig. 2, until the end wall of the fan casing abuts the gasket 35 with the fan casing inlet 25 extended with the cover conduit 20. The unit 22 is then secured in position by means of a strap or band 36 extended obliquely about the motor casing 24 to partially engage the end portion thereof, and terminally anchored on an intermediate cover portion as for example by means of tlte bolts 31 and wing units 38 or the lugs 39.

' Thus by means of the sing1e strap the unit 2z may be rmly, quickly and conveniently secured in position on its seat in the cover l2 and the suction inlet 25 of the fan casing secured into communication with the tank i through the integral conduit on the cover I2. It will be noted that conduit 20 may thus be formed with an enlarged cross-section relative to the fan suctioninlct and of gradual direction change, the communicating aperture between the cover i2 and the tank 20 being also relatively large and .thus in operation there is ak minimum of frictional loss with enhanced motor efliciency.

I claim as my invention: f

1. A cover or lid for a portable suction cleaning apparatus, said cover being adapted for re- Vmotor and encased fan having an axial suction inlet, said c over comprising an integrally formed elbow conduit rising therefrom and terminating in an annular flange extending in a vertical plane inwardly of the periphery of the cover, said ange being adapted to provide an abutment for said fan casing and to embrace its suction inlet to provide an enlarged communicating path thereto from said tank.l a strap means for detachably connecting said suction producing mechanism to said cover by moving same downwardly against said cover and then axially to engage the suction inlet portion of the fan against the ange defining the outlet opening of said conduit.

2. A cover or lid for a portable suction cleaning apparatus, said cover being adapted for removable application to a settling casing or tank having a suction inlet and being further adapted to horizontally support in operative association therewith and with said tank a portable suction producing mechanism of the class comprising a motor and encased Ian having an axial suction inlet, said cover comprising concave seat means for horizontally positioning and laterally supporting said suction producing mechanism thereon including a surface depressed portion adapted to receive a. portion of the fan casing and further comprising an integrally formed elbow conduit rising therefrom and terminating in an annular flange extending in a vertical plane inwardly of the periphery of the cover, said ange being adapted to provide an abutment for said fan casing and to embrace its suction inlet to provide an enlarged communicating path thereto from said tank, and strap means for detachably connecting said portable suction producing mechanism to said cover by moving same downwardly against said concave seat means and then laterally to bring the inlet portion of the fan into seal-tight registry with the annular flange dening the outlet opening of said conduit.

3. A cover or lid for a portable suction cleaning apparatus of the class described, means on said cover for seating and laterally supporting a portable suction producing mechanism of the class comprising a motor having an encased fan of relatively larger diameter provided with an axial suction inlet, said seating means including a pocket formed in said cover adapted to seat a portion of said ian casing, an integrally formed elbow conduit rising from` the cover, the base of the conduit extending from adjacent the periphery of the cover to said fan casing pocket, said conduit terminating in an annular flange extending above and adjacent to the end of said pocket and opening thereto in a vertical plane,

- said flange being adapted to provide an abutment for said fan casing and to embrace the suction inlet thereof to provide a communicating path through the cover, and strap means on said cover for retaining said suction producing mechanism in detachable seated engagement thereon With its fan casing in abutment with the condulll ange.

JOHN P. JASON. 

